“Avatar” co-star Giovanni Ribisi was on hand to accept on behalf of the filmmakers.

Other prizes were spread among several contenders. Pixar boasted two winners, with “Up” honored as animated 3D feature and “Partly Cloudy” taking the prize for 3D short.

Imax’s “Under the Sea 3D” got the award for 3D docu, Disney’s “G-Force” copped the prize for achievement in converting a feature from 2D to 3D, and Focus Features’ “Coraline” captured praise for animated 3D stereography.

Other honorees were Brendan Fraser, recipient of the 3D Talent award for his work as actor and exec producer on “Journey to the Center of the Earth in 3D,” and DreamWorks Animation’s Jeffrey Katzenberg, who received the org’s 3D Vision award.

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The Intl. 3D Society also partnered with the People’s Choice Awards to honor one 3D live-action picture and one animated film. Nominees were announced in the Jan. 6 People’s Choice telecast, with fans voting online through Jan. 20. “Avatar” and “Coraline” won these two prizes, respectively.The Intl. 3D Society’s awards “represent the first time in motion picture history that achievement in the 3D art form has been recognized,” said org prexy Jim Chabin.

Society was formed last month to provide education to the rapidly growing stereoscopic 3D filmmaking community and to recognize talent in front of and behind the camera.